Window construction



Feb. 26, 1952 STEWGRUBEE 2,587,547

WINDOW CONSTRUCTION Filed Sept. 25, 1946 3 Sheets-Sheet 1 Feb. 26, 1952 a. STEINGRUBER WINDOW CONSTRUCTION 3 Sheets-Sheet 3 Filed Sept. 23, 1946 Patented Feb. 26, 1952 pma; S

ES A-TE T OFFICE Tb? present invention relates to window constructions, andrnore especially to metal window structures of the double-hung sash type. l The primary object of the invention is to provide a simple, durable, rigid, and economical window construction which may be made from fiat sheet-metal stock-from which the component parts maybe stamped and formed preliminary to assemblythereof into a complete uni-' tary structure, ready for installation, In attaining ..the foregoing objective as applied to window structures of thedouble-hung sash t pe, each -sash is preferably composed of two complementary stampings, each stamping of which is in one piece andforms one-.halfof the sash, that is,,,f an inner section and an outer section, .said sections telescoping one within the other and being secured together by suitable fastenings ex; tendingthroughthe overlapping marginal edges thereof. v H v A further object of the inventionis to proyide a sheet metal window construction embodying double-hung sashes which balance each other, and which are provided with operatingmeans such that raising of the lower sash automatically scams. (01. 18 -761,]

and simultaneously .causes lowering ofthe upper sash, and vice versa; said operating means preferably including rack means on each sash and a .pinion operatively engaging, the rack means on each sash and establishing a connection the rebetween for causing, simultaneous movements thereof and balancing of the sashes with respect to each other. H

Another object, of the invention is to provide a sheet metal window construction of the doublehungsash type,. whereinthe sashesare slidably mounted for vertical movement in channels formed by the window frame, said frame having a parting strip detachably connected to the inner face of the frameat each side thereof and projectingbetween thesashes, and a one-piece sheet metalweather' strip mounted on the inner face of each side of the frame and clampedl be tween the frame and-the parting strip aforesaid, with the weatherstripextended at opposite sides of theparting strip for cooperation with each sash. A still furtherobject of the invention is to provide a sheet-metal window construction of the double-hung safsllItypa-inwhich the sashes are provided with a simple and improved adjustable locking means for securely locking the sashesin closed position, and which may-be easily and quickly adjusted tof-pause the sashes to tightly engage the top and bottom, respectively, of the window fram when the sashes are locked.

, Figure 3 is a fragmentary horizontal sectional Yet another'object of the invention isto pro-- vide a metal window sash which may be stamped out from flat sheets and is composed of two com-1 plementary, one-piece, rectangular. sections, the

outer marginal edges of which havelasliding fit, one over the other, the inner margin otone section being formed with a shoulder to provide a seat for the windowglass, and the inner margin of the complementary section being laterally ofiset .towardsthe shoulder aforesaid so'as to'f Other andfurther objects and advantages of theinvention will be hereinafterdescribed and the. novel features thereof defined .by the an;-.

pended claims.

I n the drawings: 4 V. Figure .1 is a. View in elevation of a metal window structure of ,thedouble-hung sash type constructed in accordance With the present invention-with portionsthereof broken away and shown in section; i

Figure 2.is a vertical sectional view taken cen trally through the window structure onthe line 2-2 of Figure 1,--and particularly showing the details of the adjustable sash lock;

view taken on the line 3-3 of Figure 2; .3 Figure 4 is a fragmentary horizontal sectional view taken onithe line 4 4 of Figure l, and

showing the latch for securingthe sashes 'in', selected positions of vertical, adjustment;

Figure5is a composite view in vertical sec-.

tion through one of the sashes, showing the component parts related to each other according to their cooperative relationship on final assembly;

. ,-l 4 Figure 6 is'a composite view in horizontal section throughthe sash of Figure'5. While the invention" will be particularly described herein as applied 'to a double-hung win dow construction, 'it is to b'e'understood that it is not confined thereto inasmuch-as certain re tures of my invention are applicable to other types of window'con'structions as'will be readily understood by those'skilled in the art.

According to one of the principal character. istics of the .present invention, the window frame I, and the two sashes ,2 a d are So designed asttojb'e capable of being" made from sheet metal such as aluminum, orlo'ther suitable metallic materiaLthe component parts of the window. struc- 12 1 b n s m 9 fmn t ee sti k L y The lower horizontal' bar of the upper sash 2,

and-the upper horizontal bar of the lower sash 3 are respectively provided with meeting rails. designated 34 and 35, said meeting rails being.

attached to the respective bars in any suitable manner, by means of screw fastenings 36 and j 3'! which are arranged at spaced intervals along.

2 of the drawings. erably formed of sheet metal and are duplicates, one of the other, but arranged in reversed relation as clearly shown in the drawings; Each meeting rail includes an elongated horizontal portion 38 which is bent over at right angles at one end, as indicated at 39 to hook over the sash bar to which it is attached, and at the opitself at an acute angle to form an inclined face teeth forming racks which mesh with pinions 46 fixed to the window frame at the respective opposite sides of the frame, and located between the sashes 2 and 3. While only one pinion at one side of the window frame is shown in the 1 drawings, it is to be understood thattwo pinions are preferably employed,- one located at each side of the window frame, which are duplicates of each other. As will be seen from reference'to Figures 1 to 3 inclusive, each pinion is rotatably mounted on a fixed stud or pin 41 which is suitably secured to the window frame in any desired manner, as by means of a clamping nut 48, said stud or pinion extending through the window frame 4, through the weather strip 42,- and through the parting strip ID to the inside of the latter, and projecting sufficiently beyond the inner face of the window frame to receive the pinpos1te end, the portion 38 1S reversely bent upon which is adapted to abut against the oor'-' responding face of the meeting rail on the other sash, when the sashes are closed. The free edges of the inclined portions 40 of the respective meeting rails are further bent inwardly towards the sash so as to lie substantially parallel to the portions 38, as indicated at 4|, the extreme edges of the portions 4| abutting against the correspending faces of the respective sashes. When the sashes are assembled in their com-,- plete forms, and mounted in the window frame at opposite sides of the parting strip [0, they are free to slide vertically in the conventional Being made of sheet metal, they will alwaysoperate freely and?! manner of double-hung sashes.

ion thereon. The parting strip is cut away to *allow the pinion to project therethrough so as to "sides of the parting strip, leaving sufiicient clearance around the pinion so that it is free to rotate without binding against the parting strip 10. By employing two pinions located respectively at op- 'posite sides of the window frame, the sashes'will always be perfectly balanced, and will always work freely in their raising and lowering move ments in the window frame, without binding in the channels in which they slide, and the pinions 46are preferably located with their central axes lying in a plane which extends horizontally through the middle of thelower horizontal bar of the upper sash and the upper horizontal bar of the lower sash. Thus the pinions will always be in engagement .with the toothed racks on both smoothly in the window frame as the sashes are I raised and lowered. If desired, suitable weather 1',

' ,sashes in all positions of the sashes.

strips may be provided at opposite sides of the sashes to prevent air from passing around the;

sashes between their vertical edges and the ver'-' .I Owing to the tical sides of the window frame.

special construction of my new window structure,

an exceedingly simple and eflicient weather strip;

may be employed in the form of a single sheet of relatively thin metal formed in one piece and disposed across the entire face of each'side of the window frame, as illustrated in Figureilj As shown in this figure, the' weather strip is designated generally at 42, and.

of the drawings.

has its central part seated in the channel or recess 9 of the window frame, and clamped firmly in position by the parting strip l0 which "is drawn up tightly against the weather strip by means of the screws II which serve to secure the parting strip to the opposite sides of the window frame. At each side of the parting strip I0, the weather strip 42 is preferably bowed inwardly as indicated at 43 and 44, respectively;

so as to make good contact with the vertical edges of the window sashes. The weather strip 42 may be made of any suitable material commonly employed for such purposes, and preferably of a material which is inherently resilient so as to'insure a sealing contact between the j weather strip and the window sashes in all positions of the sashes. A

If desired, the sashes 2 and 3 may be equipped with operating means such as will cause simultaneous movement of both sashes on moving either sash, and at the same time serving to bal ance the sashes with relation to each other. For

this purpose, the inner edges of the channel members 23.and 24, respectively, of both sashes are provided with a series of teeth 45 extending the full length of each channel member, said With such an arrangement, when the lower sash 3 is raised,

the upper sash 2 will be lowered a corresponding amount, and viceversa. To facilitate such rais ing and lowering movements of the sashes, the

'theretoas a separate element, or which may be formed integral therewith as by stamping the imetal of the sash in an obvious manner.

In-order to secure the sashes against movement when shifted to a fully or partially opened position, I preferably provide latch means which 1 is selectively operable to positively restrain the sashes against movement in the various positions of adjustment thereof. Such latch means may have any suitable form, such as the simple form illustrated in the drawings, reference being particularly made to Figures 1 and 4 in which 53 designates a latch member pivotally mounted at 5| upon the top of the upper bar of the lower sash member 3, said latch member being disposed at one side of thesash, near the parting strip I ii and having a pin 52 projecting therefrom towards the parting strip and selectively receivable in a series of spaced openings 53 formed in the parting strip, as shown clearly in Figure 1.

The latch member is rockable in opposite directions in a horizontal plane about a vertical axis so that the pin 52 may be'selectively engaged in or'withdrawn from the openings 53 in the parting strio ID, at will, by manual man pulation of the latch member in an obvious manner. If desired, the latch member may be equipped with a spring 54 which either biases the latch member towards a position automatically engaging the pin 52 with the openings 53, or, in the alternative, which imposes suiiicient frictional resistance to rocking movement of the latch member as to cause the latch member to remain in anyposition to which :it is .manually shifted, after assuming .such ,position. .By the use of such ailatch member as above described, the sashes may .be securely and positively restrained against movement while ina partially or fully opened position, and since the latch member is only readily accessible from the inside of the window structure, unauthorized entry through the window or unauthorized movement of the sashes by a person or persons outside of the window, is prevented.

.I also preferably provide an improved lock means for positively locking the sashes in their fully closed position, .said .1001; .means being best illustrated in Figures .1 and 2 i the drawings. Referring particularly to such lock .means, there is attached to the-lower horizontal bar of theupper sash 2 a flatplate 55 which secured to. the-inner :face of the bar in any suitable manner, as by .-means of screws .56, said plate being disposed at or near .ther mid-portion of the sash and extending upwardly from the lower bar to apoint somewhat above the same where it terminates in a hook-shaped extremity 51. .As will be seen in Figure 2, .the lower portion of the plate 55 is concealed within the meeting rail 34, except for the upper hook-shaped portion 51 which extends above the meeting rail, and the meeting rail is preferably notched or .cut-outin the zone of the plate 55 so that the "horizontal portion 4| of the meeting :rail will abut against the lower bar of the upper sash except in the zone of the plate .55.

Attached to the upperside of the lower sash .3 and pivotally mounted thereon .is a rotatable lock member generally designated 58 said lock member 58 including a flat base .59 from which extends upwardly atan inclination thereto a marginal cam wall 60 of varying heightand com parable .to lock members heretofore used extensively for locking double-hung windows. The cam wall 60 extends about the flat base '59 for a distance of approximately .180 degrees and terminates at one end in -an-offsetfinger piece Bl. At the center of said base 59 and extending upwardly therefrom is an enlarged-head 62 which is somewhat dome-like in shape, said head being preferably formed as an integral part of the base 59 and cam wall 60. 62 is counterbored and interiorly threaded to threadedly engage the upper extremity of an upright threaded stud .or pin .63 which .is rigidly secured to the lower sash '3 at its mid-portion and extends upwardly therefrom. The stud or pin 63 is anchored to the sash in any suitable manner, as by means of a pair of clamping nuts 64 and 65 located respectively above and below the elongated horizontal portion of the meeting rail 35 which is carried by the upper end of the lower sash 3. The base 59 and the lower end of the dome-like head 62 are recessed as at 66 'to clear the nut '64 and permit the lock member 58 to be freely rotated on the stud 0r pin 63. This has the advantage, and distinguishes from former window locks heretofore used by permitting quick adjustment of -the lock 'member 58 in "an upward and downward direction so as to raise or lower the cam'wall :60, as the case may be, as required to force the upper sash"! and the lower sash3 into firm engagement with the top and bottom respectively of "the window frame "I, when the sashes are fully closed and locked. 'Thezadjustmentis very simple and maybe quickly made when the "sashes are in partially open position, 'bymerely unscrewing the lock member 58 in one direction or screwing it up in The dome-like head the anther-direction relative to-the stud or pin 63 with which the lock 'memberfii is threadedly engaged.

In the use 10f window StIilICfillTESfi'KOf the type above described, andipart-icularly when tha'sashes are stamped out in-the form of complementary telescopic sections, each of which .is in one piece; the cross sectional dimensions of the top, bottom, and side bars which .form' the sash units .may be reduced to 'al minimum without material sacrifice of rigidity and durability, and considerably rless than the :cross sectional dimensions required for sashes made of wood -or extruded metal shapes. Thus, my improved window construction presents a substantially greater area of glass 'for windows of standard size. In addition, square cornersat the junctions of the top, :bottom, and sidebars may be avoided by rounding :these corners in stamping out .the sash sections .in one piece, thereby making the cleaning of the window glasseasier -and eliminating accumulations of dirt and -other spotty conditions which are common in windows of conventional construction with square corners. ,My new window construction :is adaptable for installation .in buildings and other structures of widely varying types, and maybe installed with a minimum of effort and expense by the use of simple anchors of any-suitable type. Other advantages will be readily apparent to those lskiled .in the art, and hence such :advantages need not be further described.

While the specific details have been herein shown and described, the invention is not :confined thereto !as changes and alterations may he made without departing-from the spirit thereof as defined by the appended claims.

I claim:

'1. A metal window sash construction comprising a pair of one-piece complementary sheet metal "stampings of rectangular outline, said stampings each having an outer .marginal flange extended completely about the extreme outer marginal edges thereof and at a right angle thereto, with the flange of one stamping roverlapping the flangetof the 'other stamping, a pair of channel members in'which :said overlapping flanges are seated, said channel members extending the full length of said sash :on the vrespective opposite :sides thereof, means for securing said overlapping flanges in said channel members,' and a transparent pane mounted in the sash and clamped between the complementary stampings.

'2. A window sash,- comprising .a pair of complementary sheet metal frames, each of generally rectangular one-piece :form, each of said frames having outer marginal :flanges extending completely therearound and disposed at a :right angle thereto and *slidably engaging one within the other and secured together about the periphery of said "frames, one of said frames having a preformed shoulder extending .about its inner margin against which a window pane is seated, and the other complementary-frame:having a flange "inwardly Ofiset therefrom towards the shoulder aforementioned and extending about the inner margin of the frame for abutting engagementwith the window pane wihen thela'tter is disposed between the shoulder .on .one frame and the offset flange .on the other frame, the frame having the shoulder being provided with a further flangev extending about the inner margin thereof from the base-of the shoulder 'towards the other frame inparallel relation to the 'slidably engageable flanges about the outer 9 margins of the frames, said further flange terminating in abutting engagement with the other complementary frame and eigtending about the marginal edges of the pane'f'ivhen the pane is mounted in the sash as aforesaid.

3. A window sash as defined Lin claim 2, wherein at least two opposite edges, 01' the assembled sash frames are seated in channel members which are extended the full lengtho: the frames and rigidly secured thereto.

GEORGE SII'EINGRUBER.

REFERENCES QITED Norcross Oct. 2, 1894 Halin Feb. 15, 1898 Number Gilbert July 24, 1906 Lasersohn Jan. 10, 1911 Schaffert "Jan. 16, 1912 20 Hubbard Nov. 6, 1900 Number Number 10 Name Date Bujack May 20, 1924 Twardowsky July 29, 1924 Campbell Aug. 11, 1925 Strom Dec. 29, 1925 Lee July 3, 1928 Lane Mar. 4, 1930 Michaela Feb. 24, 1931 Munson May 19, 1931 Plym Feb. 16, 1932 Traut Mar. 5, 1935 Tashjian et a1 Aug. 18, 1936 Strom Mar. 16, 1937 Edwards Sept. 27, 1938 Sharp Oct. 4, 1938 Cannon et a1. July 23, 1940 Benton Sept. 15, 1942 Peremi et a1 Oct. 20, 1942 FOREIGN PATENTS Country Date Great Britain 1898 Switzerland 190'! 

